diff --git a/examples/apt/apt.conf.d/98default-release b/examples/apt/apt.conf.d/98default-release
new file mode 100644
index 0000000..4143a94
--- /dev/null
+++ b/examples/apt/apt.conf.d/98default-release
@@ -0,0 +1 @@
+APT::Default-Release "stable";
diff --git a/examples/apt/preferences.d/debian-release-pinning b/examples/apt/preferences.d/90debian-release-pinning
similarity index 88%
rename from examples/apt/preferences.d/debian-release-pinning
rename to examples/apt/preferences.d/90debian-release-pinning
index 2f4fbf1..0fbd553 100644
--- a/examples/apt/preferences.d/debian-release-pinning
+++ b/examples/apt/preferences.d/90debian-release-pinning
@@ -1,10 +1,10 @@
 Package: *
-Pin: release a=stable
+Pin: release a=testing
 Pin-Priority: 990
 
 Package: *
-Pin: release a=testing
-Pin-Priority: 490
+Pin: release a=stable
+Pin-Priority: 500
 
 Package: *
 Pin: release a=unstable
diff --git a/examples/apt/preferences.d/boinc-packages-pinning b/examples/apt/preferences.d/99boinc-packages-pinning
similarity index 91%
rename from examples/apt/preferences.d/boinc-packages-pinning
rename to examples/apt/preferences.d/99boinc-packages-pinning
index c1b9504..7948349 100644
--- a/examples/apt/preferences.d/boinc-packages-pinning
+++ b/examples/apt/preferences.d/99boinc-packages-pinning
@@ -1,3 +1,3 @@
 Package: boinc boinc-app-eah-brp boinc-client boinc-client-nvidia-cuda boinc-client-opencl boinc-dev boinc-manager boinc-screensaver boinctui libboinc-app-dev libboinc-app7 libboinc7
 Pin: release a=testing
-Pin-Priority: 991
+Pin-Priority: 995
diff --git a/examples/apt/preferences.d/firefox-package-pinning b/examples/apt/preferences.d/99firefox-package-pinning
similarity index 69%
rename from examples/apt/preferences.d/firefox-package-pinning
rename to examples/apt/preferences.d/99firefox-package-pinning
index 9ae253f..2e03ca3 100644
--- a/examples/apt/preferences.d/firefox-package-pinning
+++ b/examples/apt/preferences.d/99firefox-package-pinning
@@ -1,3 +1,3 @@
 Package: firefox
 Pin: release a=unstable
-Pin-Priority: 991
+Pin-Priority: 995